名词包封，封套
名词
1. The city was still in the foggy envelopment of the morning.
这座城市还在晨雾的包围中。
2. She saved the envelopment after she opened the package.
打开包裹后她把封皮存了起来。
1. 环绕感：ENV envelope 包络线 | Envelopment 环绕感 | EOP electronic overload protection 电子过载保护
2. 包封：enveloping surface 包络面 | envelopment 包封 | environgeology 环境地质学
3. 包围：engagement 攻击;交战 | envelopment 包围 | environmental cleanup 环境清扫
4. 包装;包裹;包封：enumeration 菌落计数 | envelopment 包装;包裹;包封 | envenomation 表面变质